[Bug libstdc++/13731] [3.4 regression] Low level I/O not safe wrt short writes

["cvs-commit at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-02-20 19:26 -------
Subject: Bug 13731

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_4-branch
Changes by:	paolo@gcc.gnu.org	2004-02-20 19:26:24

Modified files:
	libstdc++-v3   : ChangeLog 
	libstdc++-v3/config/io: basic_file_stdio.cc 

Log message:
	2004-02-20  Paolo Carlini  <pcarlini@suse.de>
	
	* config/io/basic_file_stdio.cc (__gnu_internal::xwritev):
	Rewrite, avoiding recursion.
	(__gnu_internal::xwrite): Minor tweaks.
	
	2004-02-20  Paolo Carlini  <pcarlini@suse.de>
	
	PR libstdc++/13731 (final part: writev)
	* config/io/basic_file_stdio.cc (__gnu_internal::xwritev):
	New, a wrapper around writev() handling partial writes.
	(__basic_file<char>::xwrite): Move to __gnu_internal and make
	static.
	(__basic_file<char>::xsputn): Update call.
	(__basic_file<char>::xsputn_2): Likewise.
	* config/io/basic_file_stdio.h (__basic_file<char>::xwrite):
	Don't declare, now static.
	
	2004-02-20  Paolo Carlini  <pcarlini@suse.de>
	
	PR libstdc++/13731 (first part: write)
	* config/io/basic_file_stdio.h (__basic_file<char>::xwrite):
	New, declare.
	* config/io/basic_file_stdio.cc (__basic_file<char>::xwrite):
	Define it: a wrapper around write() handling partial write.
	(__basic_file<char>::xsputn): Use it.
	(__basic_file<char>::xsputn_2): Likewise.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.2224.2.41&r2=1.2224.2.42
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/config/io/basic_file_stdio.cc.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.25.4.2&r2=1.25.4.3



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13731